Home / 9,403.07-12,975.39-5,369.85

Finding the Fourth Proportional to 9,403.07, 12,975.39 and 5,369.85

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Solution

The fourth proportional to 9,403.07, 12,975.39 and 5,369.85 is: 7,409.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.07 : 12,975.39 = 5,369.85 : x
  2. Step 2: Convert to fraction form
    9,403.07/12,975.39 = 5,369.85/x
  3. Step 3: Cross multiply
    9,403.07x = 12,975.39 × 5,369.85
  4. Step 4: Simplify right side
    9,403.07x = 69,675,897.99
  5. Step 5: Solve for x
    x = 69,675,897.99/9,403.07
  6. Step 6: Final answer
    x = 7,409.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.